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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING






2. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat






3. 283 days






4. Duct through penis that carries sperm and urine






5. S-shaped inside body - relaxes to be exposed for breeding. Disadvantges: muscles weaken with age - cannot always hold it in - exposed to harsh outside conditions or stepped on.

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6. FEED






7. Sperm production






8. Way to know everything is alright with the breeding male






9. When are steers and heifers weaned from bottle feeding?






10. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






11. Animals which have only one estrous cycle (ex: dog - fox)






12. Important 'landmark' during palpation






13. 10-37 (21) days






14. Days which have increasing daylight hours

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15. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.






16. Front feet and head first. (except for hogs and dogs)






17. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders






18. 265-285 days






19. Contains and regulates the temp of the testes for sperm production






20. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






21. 1-3 days






22. What makes the milk flow through the mammary glands?






23. (switzerland) 2nd in size and milk production - most muscle -






24. 19-23 (21) days






25. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated






26. Urinary calculi.






27. Days which have increasing daylight hours

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28. Earlier you castrate a male - the easier it is on the animal. the longer you wait - death rates increase






29. 14-19 (17) days






30. Standing to be mounted (last one able to notice); mounting other animals; social behavior-restless - gregarious - activity - vocalizing; frequent urination; mucous discharge






31. Can survive ~7 days in cow. vast majority <48 hours






32. 4-6 days






33. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat






34. The more stressed out the male is - the less sperm he is going to produce






35. 283 days






36. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat






37. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.






38. Knife-loose ~1wk of growth. band-loose ~2wks of growth.






39. Contains and regulates the temp of the testes for sperm production






40. (male) Primary sex organ - produces sperm (male gamete) and male sex hormones - 2 total






41. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed






42. (male) Primary sex organ - produces sperm (male gamete) and male sex hormones - 2 total






43. Failure to have one testis (gonad) to descend






44. Microscopic - make sure not sterile - very few bulls are actually tested






45. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






46. 30-38 hours after estrus cycle begins






47. Produce testosterone. located between the seminiferous tubules






48. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.






49. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING






50. Standing to be mounted (last one able to notice); mounting other animals; social behavior-restless - gregarious - activity - vocalizing; frequent urination; mucous discharge







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